TaxSimple
p/taxsimple
Free UK tax calculator for self-employed no signup
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Sarswat Omkar•

9d ago

I replaced a £30/year tax tool with a free one — here's what I learned building it

I'm self-employed in the UK. Every year I'd pay 30+ for GoSimpleTax just to answer one question: "How much tax do I owe?"

That felt wrong. It's basically a calculator with HMRC rates plugged in. So I built my own.

TaxSimple (https://taxsimple.me) is a free UK self-assessment tax calculator. No signup, no email, instant results.

What it does:

Sarswat Omkar•

9d ago

TaxSimple - Free UK tax calculator for self-employed no signup

Free UK self-assessment tax calculator for 2025/26. Built for self-employed workers, freelancers, and landlords. Calculates income tax, National Insurance (Class 2 & 4), all 16 expense categories, mileage, home office, rental income, dividends, and payments on account. No signup. No email. Instant results. HMRC-verified rates. Unlike GoSimpleTax (£30+/year), TaxSimple is completely free. Optional PDF report with HMRC box references for £12.99.